SAP-JCO Support is a mapping framework for Java applications requiring SAP access. You can easily define your SAP BAPI call in XML and map the SAP fields to java value object fields. Included features are SearchHelp support and an SQL-ish query language.
ICMP Shell (ISH) is a telnet-like protocol. It allows users to connect to a remote host and to open a shell using only ICMP to send and receive data. ICMP Shell was written in C for the UNIX environment.